One of the most basic properties expected from block ciphers and hash functions is passing statistical randomness testing, as they are expected to behave like random mappings. Previously, testing of AES candidate block ciphers was done by concatenating the outputs of the algorithms obtained from various input types. In this work, a more convenient method, namely the cryptographic randomness tes...

Checking the blockage: The impact of protein fouling on platinum electrodes is assessed by electrochemical methods. Adsorbed proteins are shown to partially block an electrode, with no charge passing through blocked regions. theory and methodology for investigating fully presented, applied adsorption implications bionics applications discussed.

Spreading activation, in the farm of computer models and cognitive theories, has recently been undergoing a resurgence of interest in the cognitive science and Al communities. Two different types of cognitive models have been proposed to explain the activation spreading results. One approach, that of marker-passing, concentrates on the spreading of symbolic information through an associative kn...